Children are playing with a remote-controlled toy jeep in an open horizontal field. At some time,...
Children are playing with a remote-controlled toy jeep in an open horizontal field. At some time, the jeep is located (relative to a rock which they are using as the origin) at r0 = (10.5î − 3.50ĵ) m and has a velocity of v0 = (7.00î + 1.50ĵ) m/s. If, for a time interval Δt =10.0 s, the jeep experiences a constant acceleration a and acquires a new velocity v = (3.00î − 20.00ĵ) m/s, determine the following for the jeep. (Express your answer in vector form.) (a) position vector at time t = 10.0 s r(t = 10.0 s) = Incorrect: Your answer is incorrect. Can you write a general expression for the vector position of the jeep at any time? How can you obtain the acceleration from the given information? m (b) velocity vector time t = 5.00 s v(t = 5.00 s) = Correct: Your answer is correct. m/s
Homework Answers
Add Answer to:
Children are playing with a remote-controlled toy jeep in an
open horizontal field. At some time,...
A child operates a remote controlled toy car on a linear track. The figure below plots...
A child operates a remote controlled toy car on a linear track. The figure below plots the car's position as a function of time. x (m) Find the velocity of the toy car at the following times. Indicate the direction with the sign of your answer. (a) t 1.4 s: 1.4 Remember that velocity is the change in position per the change in time. If the graph plots position vs. time, what property of the plot in each segment is...
i already tried poaitive 65.2 A remote-controlled car is moving in a vacant parking lot. The...
i already tried poaitive 65.2
A remote-controlled car is moving in a vacant parking lot. The velocity of the car as a function of time is given by v = [5.00 m/s - (0.0180 m/s^3)t^2]i + [2.00 m/s + (0.550 m/s^2)t]j. What is the direction (in degrees counterclockwise from +x-axis) of the acceleration of the car at t = 7.05 s ? Express your answer to three significant figures and include the appropriate units.
first picture has the information you need to do the other parts A remote-controlled car is...
first picture has the information you need to do the other
parts
A remote-controlled car is moving in a vacant parking lot. The velocity of the car as a function of time is given by ū– (5.00 m/s – (0.0180 m/s”){%)+ [2.00 m/s + (0.550 m/s?)t)ì. Part C What is the magnitude of the velocity of the car at t = 6.73 s? Express your answer to three significant figures and include the app ? v= Value Units Submit Request...
A remote-controlled car is moving in a vacant parking lot. The velocity of the car as...
A remote-controlled car is moving in a vacant parking lot. The velocity of the car as a function of time is given by υ⃗ =[5.00m/s−(0.0180m/s3)t2]i^ + [2.00m/s+(0.550m/s2)t]j^. Part APart complete What is ax(t) the x-component of the acceleration of the car as function of time? ax(t)=(−0.0180m/s3)t ax(t)=(0.0360m/s3)t ax(t)=(−0.0360m/s3)t Previous Answers Correct Part BPart complete What is ay(t) the y-component of the acceleration of the car as function of time? ay(t)=(−0.550m/s2)t ay(t)=2.00m/s2 ay(t)=0.550m/s2 Previous Answers Correct Part C What is the...
You have a remote-controlled car that has been programmed to have velocity v⃗ =(−3ti^+2t2j^)m/s, where t is in s. At t = 0 s, the car is at r⃗ 0=(3.0i^+2.0j^)m.
You have a remote-controlled car that has been programmed to have velocity v⃗ =(−3ti^+2t2j^)m/sv→=(−3ti^+2t2j^)m/s, where tt is in ss. At tt = 0 ss, the car is at r⃗ 0=(3.0i^+2.0j^)mr→0=(3.0i^+2.0j^)m.a) What is the xx component of the car's position vector at 2.0 ss?b) What is the yy component of the car's position vector at 2.0 ss?c)What is the xx component of the car's acceleration vector at
A remote-controlled car is moving in a vacant parking lot. The velocity of the car as...
A remote-controlled car is moving in a vacant parking lot. The velocity of the car as a function of time is given by υ⃗ =[5.00m/s−(0.0180m/s3)t^2]i^ + [2.00m/s+(0.550m/s^2)t]j^. What is the direction (in degrees counterclockwise from +x-axis) of the acceleration of the car at t = 7.48 s ? Express your answer to three significant figures and include the appropriate units.
4. Two toy remote-controlled cars start from the same position, O, at time t-0. One car, C ,travels north at 4 m/s, while the other, C2, travels west at 2 m/s. (a) After two seconds, compute the r...
4. Two toy remote-controlled cars start from the same position, O, at time t-0. One car, C ,travels north at 4 m/s, while the other, C2, travels west at 2 m/s. (a) After two seconds, compute the rate of change of the distance between Ci and Cz. Draw a diagram to help you answer this question and the next and clearly state the units. Simplify your answer as much as possible. (7 pts.) (b) After two seconds find the rate...
Two children are playing a game where they run towards each other and see who can...
Two children are playing a game where they run towards each other and see who can reach a toy that is somewhere between them. In the beginning, Charlie is 23.7 m away from the toy, running towards it at a speed of 0.770 m/s, and is speeding up. At the same time, Amy is 12.5 m away from the toy, is running towards it in the opposite direction as Charlie at a speed of 2.70 m/s, and is slowing down....
help!!! A remotely controlled toy car travels along a straight line and its position changes with...
help!!!
A remotely controlled toy car travels along a straight line and its position changes with time following the law: X(t) = 20 - 3t + 5t" where the coefficients have such dimensions that the position X(t) is measured in meters, 12. What is the dimension of the coefficient, which has the numeric value of 5? 13. What is the initial position of the toy car at t-0s? 14. What is the initial velocity of the car at t-os? 15....
A remote-controlled car is moving in a vacant parking lot. The velocity of the car as...
A remote-controlled car is moving in a vacant parking lot. The velocity of the car as a function of time is given by υ⃗ =[5.00m/s−(0.0180m/s3)t2]i^ + [2.00m/s+(0.550m/s2)t]j^ a> What is ax(t) the x-component of the acceleration of the car as function of time? ax(t)=(−0.0180m/s3)t ax(t)=(0.0360m/s3)t ax(t)=(−0.0360m/s3)t b> What is ay(t) the y-component of the acceleration of the car as function of time? ay(t)=2.00m/s2 ay(t)=0.550m/s2 ay(t)=(−0.550m/s2)t c> What is the magnitude of the velocity of the car at t = 6.59...
A child operates a remote controlled toy car on a linear track. The figure below plots the car's position as a function of time. x (m) Find the velocity of the toy car at the following times. Indicate the direction with the sign of your answer. (a) t 1.4 s: 1.4 Remember that velocity is the change in position per the change in time. If the graph plots position vs. time, what property of the plot in each segment is...
i already tried poaitive 65.2
A remote-controlled car is moving in a vacant parking lot. The velocity of the car as a function of time is given by v = [5.00 m/s - (0.0180 m/s^3)t^2]i + [2.00 m/s + (0.550 m/s^2)t]j. What is the direction (in degrees counterclockwise from +x-axis) of the acceleration of the car at t = 7.05 s ? Express your answer to three significant figures and include the appropriate units.
first picture has the information you need to do the other
parts
A remote-controlled car is moving in a vacant parking lot. The velocity of the car as a function of time is given by ū– (5.00 m/s – (0.0180 m/s”){%)+ [2.00 m/s + (0.550 m/s?)t)ì. Part C What is the magnitude of the velocity of the car at t = 6.73 s? Express your answer to three significant figures and include the app ? v= Value Units Submit Request...
4. Two toy remote-controlled cars start from the same position, O, at time t-0. One car, C ,travels north at 4 m/s, while the other, C2, travels west at 2 m/s. (a) After two seconds, compute the rate of change of the distance between Ci and Cz. Draw a diagram to help you answer this question and the next and clearly state the units. Simplify your answer as much as possible. (7 pts.) (b) After two seconds find the rate...
help!!!
A remotely controlled toy car travels along a straight line and its position changes with time following the law: X(t) = 20 - 3t + 5t" where the coefficients have such dimensions that the position X(t) is measured in meters, 12. What is the dimension of the coefficient, which has the numeric value of 5? 13. What is the initial position of the toy car at t-0s? 14. What is the initial velocity of the car at t-os? 15....
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago